If you’re teaching business people then I’d suggest the Market Leader course.
It contains student books, teacher’s manual, audio, video and online supplements. There are 4 levels of business conversation.
These include Beginner, Pre-Intermediate, Intermediate and Upper Intermediate. So, you’ve got continuity once your students complete once book they can move to the next level.
Of course, with any English conversation course, you’ll have to change things up a bit as the students will get tired of using only a textbook.
I’ve developed some compelling English conversation lessons with surveys and discussion activities that get even the most shy students talking.
There are two levels for adults. Simply adult conversation topics and business topics.
Give them a try and let me know how they go…
Topics include: hiking, drinking wine, childhood memories, daily routines, managing finances and more…
They’re all free to use. Adult Conversation ESL Speaking Lessons For ESL Learners